77802404132 has 12 divisors (see below), whose sum is σ = 140546278656. Its totient is φ = 37646324520.

The previous prime is 77802404131. The next prime is 77802404209. The reversal of 77802404132 is 23140420877.

It is not an unprimeable number, because it can be changed into a prime (77802404131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313719248 + ... + 313719495.

It is an arithmetic number, because the mean of its divisors is an integer number (11712189888).

Almost surely, 2^77802404132 is an apocalyptic number.

It is an amenable number.

77802404132 is a deficient number, since it is larger than the sum of its proper divisors (62743874524).

77802404132 is a wasteful number, since it uses less digits than its factorization.

77802404132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627438778 (or 627438776 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The spelling of 77802404132 in words is "seventy-seven billion, eight hundred two million, four hundred four thousand, one hundred thirty-two".